First off, a practical thought: getting out burrs (after running outside) would be much easier!
Of course, if he could plan when he went out, he could avoid the stormy rainy nights and steer clear of burrs and stuff.
And when Mr. Quincy is pushing his every last button…
Barnie was the inventor of the Invisi-Cat Shield, only to be claimed permanently by Quincy.
But most of all, Barnie loves hanging with his family, cozy inside. No worries about rain, burrs, snow or lack of food any more.